What Is the Value of SP for the Following Set $$\begin{array} { l l } \mathrm { X } & \mathrm { Y } \\\hline 4 & 3 \\1 & 2 \\1 & 5 \\2 & 6\end{array}$$

Multiple Choice

What is the value of SP for the following set of data? $$\begin{array} { l l } \mathrm { X } & \mathrm { Y } \\\hline 4 & 3 \\1 & 2 \\1 & 5 \\2 & 6\end{array}$$

A) -1
B) -5 4
C) 5 1
D) None of the other 3 choices is correct.